Year	% of relevant age group
1972	45.7898712158203
1973	46.3584403991699
1974	46.8434410095215
1975	47.776309967041
1976	48.5385589599609
1977	49.716869354248
1978	50.4687614440918
1979	50.7859306335449
1980	51.1241111755371
1981	52.2492408752441
1982	52.5803184509277
1983	51.264778137207
1984	51.3508186340332
1985	50.8966217041016
1986	51.055908203125
1987	50.0286598205566
1988	49.1305503845215
1989	48.6896286010742
1990	49.3955993652344
1991	49.3964881896973
1992	48.9239883422852
1993	49.1133613586426
1994	47.8534088134766
1995	47.7877082824707
1996	48.2295417785645
1997	47.9474411010742
1998	47.5557899475098
1999	47.6605491638184
2000	49.0228500366211
2001	51.675708770752
2002	53.7966995239258
2003	56.0221099853516
2004	57.0306282043457
2005	59.6352081298828
2006	60.5681190490723
2007	61.705509185791
2008	63.8054809570312
2009	66.3530578613281
2010	66.6925735473633
2011	66.4566802978516
2012	66.1152877807617
2013	64.218620300293
2014	64.3920288085938
2015	64.2020034790039
2016	65.3845062255859
2017	66.0154037475586
2018	67.3266067504883
2019	67.9638519287109
2020	68.7602233886719
2021	69.5063781738281
2022	69.1965026855469